6 Written Questions

1. can be used in medicine, art, and engineering
2. are given off by people and police may use them to track criminals
3. a piece of glass or other transparent object that refracts light and produces an image
4. light bounces off this kind of surface in the opposite direction from which it came
5. light bounces off this type of surface in all directions
6. radar and cellular phones use these waves

5 Multiple Choice Questions

1. the only electromagnetic wave that is visible to the human eye
   1. mirror
   2. lens
   3. light
   4. rough
2. cause some material to glow and are used to find unsafe bacteria in food
   1. radio waves
   2. gamma rays
   3. lasers
   4. ultraviolet rays
3. used for radio and television broadcasting
   1. gamma rays
   2. infrared waves
   3. radio waves
   4. microwaves
4. come from the sun and other sources
   1. microwaves
   2. electromagnetic waves
   3. radio waves
   4. infrared waves
5. any surface that can reflect light to form an image, a picture, or an object
   1. light
   2. mirror
   3. x-rays
   4. rough

5 True/False Questions

1. plane mirror → has a flat surface

   True        False

2. concave mirror → curves outward and makes things look smaller

   True        False

3. lasers → produce a thin beam of light that is only one color

   True        False

4. gamma rays → used to treat some kinds of cancer

   True        False

5. convex mirror → curves outward and makes things look smaller

   True        False